I personally doubt the possibility of litecoin overtaken ethereum, though Litecoin has been around a lot longer than Ethereum, but Ether has grown in value far quicker. Then there are smart-contracts to consider.
One thing of note here is that Ethereum is the more functional, the more versatile, and the more technically impressive than Litecoin.
In my opinion, Litecoin has a long ways go to if it will overtake Ethereum.
I agree with your opinion, though Litecoin has been around a lot longer than Ethereum, but Ether has grown in value far quicker.
Ethereum is smart contract platform, It is the reason why ethereum has grown faster than litecoin. Ethereum has integrated to many tokens. I see for now many people have waited the ethereum 2.0. they said It will be change Ethereum market, I hope It will compete with bitcoin at the coming future.